CN113237724A - Food sampling structure and sampling method thereof - Google Patents
Food sampling structure and sampling method thereof Download PDFInfo
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- CN113237724A CN113237724A CN202110634510.4A CN202110634510A CN113237724A CN 113237724 A CN113237724 A CN 113237724A CN 202110634510 A CN202110634510 A CN 202110634510A CN 113237724 A CN113237724 A CN 113237724A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/286—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q involving mechanical work, e.g. chopping, disintegrating, compacting, homogenising
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1031—Sampling from special places
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Abstract
The invention discloses a food sampling structure and a sampling method thereof. Food sample structure is including examining test table, installs at examining test table and the reducing mechanism that the bottom was equipped with the discharge gate, installs at examining test table and is used for carrying the first transfer device of sample storage box, installs at examining test table and places the pickup apparatus of lid for sample storage box, installs at examining test table and is used for carrying the second transfer device of sample storage box, installs at examining test table and is located the save room of second transfer device one end, installs at examining test table and is used for the sampling device to sample storage box in. The invention overcomes the defects of the prior art, provides a sampling structure and a sampling method special for food detection, and solves the problems of low efficiency, low automation degree and incomplete sampling data of the existing manual sampling.
Description
Technical Field
The invention relates to the technical field of food detection, in particular to a food sampling structure and a sampling method thereof.
Background
Food inspection refers to a subject for researching and evaluating food quality and changes thereof, and the subject is a physical, chemical and biochemical basic theory and various technologies to inspect the quality of food raw materials, auxiliary materials, semi-finished products, finished products and byproducts so as to ensure the qualified product quality. The food detection contents comprise sensory detection of food, detection of nutrient components, additives and harmful substances in the food, and the like.
Food detection needs to sample food first, but the existing solid food sampling has the following problems: firstly, only the surface of the solid food can be sampled, and the data obtained by sampling is not comprehensive; secondly, the sample generally relies on artifical manual completion, and the device of sample generally is test tube and test-tube rack, and the test tube can only play the effect of temporary storage, and it is also comparatively troublesome to preserve and place.
Disclosure of Invention
The invention discloses a food sampling structure, which comprises a detection table, a crushing device, a first transfer device, a pickup device, a second transfer device, a storage chamber and a sampling device, wherein the crushing device is installed on the detection table, a discharge hole is formed in the bottom of the crushing device, the first transfer device is installed on the detection table and used for conveying a sample storage box, the pickup device is installed on the detection table and used for placing a box cover for the sample storage box, the second transfer device is installed on the detection table and used for conveying the sample storage box, the storage chamber is installed on the detection table and located at one end of the second transfer device, and the sampling device is installed on the detection table and used for sampling samples in the sample storage box, and is characterized in that:
the first transfer device comprises a supporting table arranged on the detection table, a supporting plate movably arranged on the supporting table, a groove used for placing the sample storage box and a driving assembly arranged on the detection table and used for driving the supporting plate to move;
the picking device comprises a fixed table arranged on the detection table, a fixed plate movably arranged on the fixed table, a transmission assembly arranged on the detection table and used for driving the fixed plate to move, and a grabbing assembly movably arranged on the fixed plate and used for picking the box cover;
the second transfer device comprises a conveying assembly arranged on the detection table and a clamping assembly arranged on the conveying assembly and used for clamping the sample storage box;
the sampling device comprises a transportation assembly arranged on the detection table, a steering assembly arranged on the transportation assembly and capable of adjusting the direction, and an extraction assembly arranged on the steering assembly and used for sampling.
The invention discloses a preferable food sampling structure which is characterized in that a sliding groove is formed in the top of a supporting table, a sliding column which is matched with the sliding groove is installed at the bottom of a supporting plate, and the sliding column is inserted into the sliding groove;
the supporting plate is provided with a driving groove.
The invention discloses a preferable food sampling structure which is characterized in that a driving assembly comprises a driving shaft, a worm wheel, a driving motor, a pair of supporting seats, a rotating shaft, a worm, a first driving rod and a second driving rod, wherein the driving shaft is rotatably installed on a detection table through a rolling bearing, the worm wheel is movably installed on the driving shaft and is positioned in a driving groove, the left end face and the right end face of the worm wheel are always abutted to a supporting plate, the driving motor is installed on the detection table, an output shaft of the driving motor is installed on the driving shaft, the pair of supporting seats are installed on the supporting plates, the rotating shaft is rotatably installed on the supporting seats through the rolling bearing, the worm is installed on the rotating shaft, is meshed with the worm wheel and is positioned below the worm wheel, one end of the first driving rod is installed on the worm, and the other end of the first driving rod is hinged to the first driving rod, and the other end of the second driving rod is hinged to the supporting seats.
The invention discloses a preferable food sampling structure which is characterized in that a first fixed block and a second fixed block are arranged on a fixed table along the height direction, a first groove is formed in the first fixed block, and a second groove is formed in the second fixed block; the fixing table is provided with a main transmission groove of an L-shaped structure, and the main transmission groove is positioned between the first fixing block and the second fixing block;
the fixing plate is positioned between the first fixing block and the second fixing block; the fixing plate is provided with a first lug and a second lug which are matched with the first groove and the second groove, the first lug is inserted into the first groove, and the second lug is inserted into the second groove.
The invention discloses a preferable food sampling structure which is characterized in that a transmission assembly comprises a fixed seat arranged on a detection table, a moving shaft arranged on the fixed seat in a rotating mode through a rolling bearing, a second motor arranged on the fixed seat in a pressing mode and provided with an output shaft arranged on the moving shaft, a first transmission rod arranged on the moving shaft at one end, and a second transmission rod hinged with the first transmission rod at one end and a fixed plate at the other end;
a transmission block which is in a cubic structure and can move along the main transmission groove is arranged in the main transmission groove;
an inclined auxiliary transmission groove is formed in the fixed plate, and a transmission ball which is of a spherical structure and can move along the auxiliary transmission groove is arranged in the auxiliary transmission groove; the transmission ball is embedded into the transmission block and is rotationally connected with the transmission block, and the transmission ball is embedded into the grabbing component and is rotationally connected with the grabbing component.
The invention discloses a preferable food sampling structure which is characterized in that a grabbing component comprises a supporting rod, a picking rod vertically installed on the supporting rod, a vacuum chuck installed at the bottom of the picking rod, and a vacuum pump installed on the supporting rod and communicated with the vacuum chuck through a first pipeline;
the supporting rod is provided with a caulking groove for embedding the transmission ball.
The invention discloses a preferable food sampling structure which is characterized in that a conveying assembly comprises a lead screw rotatably installed on a detection table through a rolling bearing, a third motor installed on the detection table and an output shaft installed on the lead screw, guide rails installed on the detection table and located on two sides of the lead screw, and a nut seat connected with the lead screw in a threaded manner and installed on the guide rails.
The invention discloses a preferable food sampling structure which is characterized in that a clamping assembly comprises a bottom plate arranged on a nut seat, a transverse plate arranged on the bottom plate, a first electric push rod arranged on the bottom plate and a telescopic rod penetrating through the transverse plate, a driving block arranged on the telescopic rod, a first clamping plate and a second clamping plate which are movably arranged on the transverse plate and positioned at two sides of the driving block, a pair of first clamping rods, one ends of which are hinged with the driving block and the other ends of which are hinged with the first clamping plate and distributed along the extension direction of the first electric push rod, and a pair of second clamping rods, one ends of which are hinged with the driving block and the other ends of which are hinged with the second clamping plate and distributed along the extension direction of the first electric push rod.
The invention discloses a preferable food sampling structure which is characterized in that a transportation assembly comprises a second electric push rod arranged on a detection platform, slide rails arranged on the detection platform and positioned at two sides of the second electric push rod, and a transportation platform arranged on the slide rails and connected with a telescopic rod of the second electric push rod;
the steering assembly comprises a fourth motor installed on the transport table, a driving gear installed on an output shaft of the fourth motor, a steering shaft installed on the transport table in a rotating mode through a rolling bearing, a driven gear installed on the steering shaft and meshed with the driving gear, a steering plate installed on the static shaft and located above the driven gear, a steering rod movably installed in the steering plate, and a fifth electric push rod installed in the steering plate and installed on the steering rod through a telescopic rod.
The invention discloses a preferable food sampling structure which is characterized in that an extraction assembly comprises a third electric push rod, a support frame, a fourth electric push rod, a sampling cylinder, an extraction rod and an extraction plate, wherein the third electric push rod is installed on a steering plate, a telescopic rod penetrates through the steering plate, the support frame is installed on the telescopic rod of the third electric push rod, the fourth electric push rod is installed in the support frame, the sampling cylinder is installed at the bottom of the support frame and sealed with the support frame, the lower end of the extraction rod extends into the sampling cylinder, the upper end of the extraction rod penetrates through the support frame and is connected with the telescopic rod of the fourth electric push rod, the extraction rod is coaxially arranged with the sampling cylinder, and the extraction plate is installed at the bottom of the extraction rod and sealed with the sampling cylinder.
The invention discloses a preferable food sampling structure which is characterized in that a sampling port is formed in a box cover.
The sampling method of the invention is as follows:
s1: placing the food to be detected in a crushing device, and crushing the food to be detected by the crushing device;
s2: outputting the crushed food to be detected into a sample storage box, and driving the sample storage box to move towards the direction close to the picking device by a first transfer device;
s3: the grabbing component grabs the box cover, the transmission component drives the grabbing component to move towards the direction close to the sample storage box, and the grabbing component places the box cover on the sample storage box;
s4: the clamping assembly clamps the sample storage box, the conveying assembly drives the clamping assembly to move towards the direction close to the storage chamber, and the clamping assembly places the sample storage box in the storage chamber;
s5: the transportation assembly and the steering assembly enable the extraction assembly to be symmetrical with the sampling port; the extraction component drives the sampling tube to extend into the sampling port, and the extraction component drives the air pumping rod to move upwards, so that the air pressure in the sampling tube is changed, and the sample in the sample storage box enters the sampling tube.
The invention has the following beneficial effects: the invention overcomes the defects of the prior art, provides a sampling structure and a sampling method special for food detection, and solves the problems of low efficiency, low automation degree and incomplete sampling data of the existing manual sampling.
Drawings
FIG. 1 is a top view of the present invention;
FIG. 2 is a top view of the first transfer device of the present invention;
FIG. 3 is a front view of the first transfer device of the present invention;
FIG. 4 is a top view of the pickup apparatus of the present invention;
FIG. 5 is a side view of the pickup apparatus of the present invention;
FIG. 6 is a cross-sectional view of the engagement of the drive block with the main drive slot of the present invention;
FIG. 7 is a top view of a second transfer device of the present invention;
FIG. 8 is a top view of a sampling device according to the present invention;
fig. 9 is a side view of the extraction assembly of the present invention.
The figures are labeled as follows:
100-detection table, 200-crushing device.
300-first transfer device, 301-support table, 302-support plate, 303-drive assembly, 304-drive shaft, 305-worm gear, 306-drive motor, 309-worm, 310-first drive rod, 311-second drive rod, 312-sample box.
400-a picking device, 401-a fixed table, 402-a fixed plate, 403-a transmission component, 404-a grabbing component, 405-a first fixed block, 406-a second fixed block, 408-a first groove body, 409-a second groove body, 410-a fixed seat, 411-a first transmission rod, 412-a second transmission rod, 413-a transmission block, 414-an auxiliary transmission groove, 415-a transmission ball, 416-a support rod, 417-a picking rod, 418-a vacuum chuck, 419-a vacuum pump and 420-a box cover.
500-a second transfer device, 501-a conveying assembly, 502-a clamping assembly, 503-a lead screw, 504-a third motor, 505-a guide rail, 506-a bottom plate, 507-a transverse plate, 508-a first electric push rod, 509-a driving block, 510-a first clamping plate, 511-a second clamping plate, 512-a first clamping rod and 513-a second clamping rod.
600-preservation chamber.
700-a sampling device, 701-a transportation assembly, 702-a steering assembly, 703-a drawing assembly, 704-a second electric push rod, 705-a transportation table, 706-a fourth motor, 707-a driving gear, 708-a driven gear, 709-a steering plate, 710-a third electric push rod, 711-a support frame, 712-a fourth electric push rod, 713-a sampling cylinder, 714-an air pumping rod and 715-an air pumping plate.
Detailed Description
The invention is further described with reference to the following drawings and detailed description. As shown in fig. 1, a food sampling structure and a sampling method thereof include a testing table 100, a crushing device 200 installed on the testing table 100 and having a discharge hole at the bottom, a first transfer device 300 installed on the testing table 100 and used for conveying a sample storage box 312, a pick-up device 400 installed on the testing table 100 and used for placing a box cover 420 for the sample storage box 312, a second transfer device 500 installed on the testing table 100 and used for conveying the sample storage box 312, a storage chamber 600 installed on the testing table 100 and located at one end of the second transfer device 500, and a sampling device 700 installed on the testing table 100 and used for sampling a sample in the sample storage box 312.
Reducing mechanism 200 is purchased the piece outward, belongs to prior art, and this application is not repeated the structure of reducing mechanism 200. The solid food to be detected is crushed by the crushing device 200, so that the problem that the existing solid food can only be sampled from the surface and the sampling data is incomplete is solved.
The preservation chamber is a refrigerating box.
As shown in fig. 2 and 3, the first transfer device 300 includes a support platform 301 installed on the detection platform 100, a support plate 302 movably installed on the support platform 301, a recess for placing the sample storage box 312 is formed on the support plate 302, and a driving assembly 303 installed on the detection platform 100 and used for driving the support plate 302 to move;
the top of the support platform 301 is provided with a sliding chute, the bottom of the support plate 302 is provided with a sliding column which is matched with the sliding chute, and the sliding column is inserted into the sliding chute; the support plate 302 is provided with a driving groove.
The driving assembly 303 includes a driving shaft 304 rotatably mounted on the inspection table 100 through a rolling bearing, a worm wheel 305 movably mounted on the driving shaft 304 and located in a driving groove, and left and right end faces of the worm wheel 305 are always abutted to the supporting plate 302, a driving motor 306 mounted on the inspection table 100 and having an output shaft mounted on the driving shaft 304, a pair of supporting seats mounted on the supporting plate 302, a rotating shaft rotatably mounted on the supporting seats through the rolling bearing, a worm 309 mounted on the rotating shaft and engaged with the worm wheel 305 and located below the worm wheel 305, a first driving rod 310 having one end mounted on the worm 309, and a second driving rod 311 having one end hinged to the first driving rod 310 and the other end.
The drive shaft 304 is provided with a slide key, and the worm wheel 305 is provided with a key groove which is matched with the slide key, and the slide key is inserted into the key groove.
Conveying the crushed and ground food to be detected to the next station through the first conveying device 300, so as to realize sampling automation; receive the food to be detected of the output of smashing the grinder discharge gate through sample storage box 312, utilize first motor to drive shaft 304 and rotate, worm wheel 305 rotates along with drive shaft 304, worm wheel 305 and worm 309 mesh, worm 309 drives first actuating lever 310, second actuating lever 311 and rotates, makes backup pad 302 be linear motion along the slide rail, worm wheel 305 is linear motion along with backup pad 302 and keeps meshing with worm 309 all the time to accomplish the first transportation of sample storage box 312.
As shown in fig. 4 and 5, the picking apparatus 400 includes a fixing table 401 mounted on the inspection table 100, a fixing plate 402 movably mounted on the fixing table 401, a driving assembly 403 mounted on the inspection table 100 and used for driving the fixing plate 402 to move, and a grabbing assembly 404 movably mounted on the fixing plate 402 and used for picking up the box cover 420.
A first fixed block 405 and a second fixed block 406 are arranged on the fixed table 401 along the height direction, a first groove is formed in the first fixed block 405, and a second groove is formed in the second fixed block 406; a main transmission groove with an L-shaped structure is arranged on the fixed table 401 and is positioned between the first fixed block 405 and the second fixed block 406;
the main transmission groove comprises a first groove body 408 parallel to the detection platform 100 and a second groove body 409 vertical to the detection platform 100 and communicated with the first groove body 408;
the fixing plate 402 is located between the first fixing block 405 and the second fixing block 406; the fixing plate 402 is provided with a first protrusion and a second protrusion which are matched with the first groove and the second groove, the first protrusion is inserted into the first groove, and the second protrusion is inserted into the second groove.
The transmission assembly 403 comprises a fixed seat 410 mounted on the detection table 100, a moving shaft rotatably mounted on the fixed seat 410 through a rolling bearing, a second motor having one end mounted on the fixed seat 410 and an output shaft mounted on the moving shaft, a first transmission rod 411 having one end mounted on the moving shaft, and a second transmission rod 412 having one end hinged to the first transmission rod 411 and the other end hinged to the fixed plate 402;
as shown in fig. 6, a transmission block 413 which has a cubic structure and can move along the main transmission groove is arranged in the main transmission groove;
an inclined auxiliary transmission groove 414 is formed in the fixing plate 402, and a transmission ball 415 which is of a spherical structure and can move along the auxiliary transmission groove 414 is arranged in the auxiliary transmission groove 414; the drive ball 415 is embedded in the drive block 413 and is rotatably coupled to the drive block 413, and the drive ball 415 is embedded in the gripper assembly 404 and is rotatably coupled to the gripper assembly 404.
The grabbing assembly 404 comprises a support rod 416, a pick-up rod 417 vertically installed on the support rod 416, a vacuum chuck 418 installed at the bottom of the pick-up rod 417, and a vacuum pump 419 installed on the support rod 416 and communicated with the vacuum chuck 418 through a first pipeline;
the support rod 416 is provided with a caulking groove for the transmission ball 415 to be inserted.
A plurality of box covers 420 are placed on the detection table 100, the box covers 420 are stacked, and the box covers 420 are located at one ends, far away from the supporting table 301, of the fixing tables 401.
The picking device 400 is used for placing the box cover 420 on the sample storage box 312 to shield the sample storage box 312, so that the sample in the sample storage box 312 is prevented from being polluted; the second motor drives the moving shaft to rotate, a crank-slider structure is formed among the first transmission rod 411, the second transmission rod 412 and the fixed plate 402, so that the fixed plate 402 moves linearly along the fixed table 401, the transmission block 413 moves along the main transmission groove, and the transmission ball 415 moves along the auxiliary transmission groove 414; form the wedge structure through the vice driving groove 414 of slope, mutually support with the slider-crank structure, when the transmission piece 413 moved first cell body 408 and is close to second cell body 409 department, under the vice driving groove 414 of slope and slider-crank effect, the transmission piece 413 moved down along second cell body 409, snatched the subassembly 404 along with transmission piece 413 downstream to be close to lid 420, realize the snatching of lid 420.
When the box cover 420 needs to be grabbed, the first transmission rod 411 and the second transmission rod 412 drive the fixing plate 402 to move towards the direction close to the box cover 420, the transmission block 413 moves along the first groove body 408, and the transmission ball 415 is located at the upper end of the auxiliary transmission groove 414; when the transmission block 413 moves to a position where the first slot body 408 is communicated with the second slot body 409, the first transmission rod 411 continues to rotate, the transmission ball 415 moves downwards along the auxiliary transmission slot 414, and the transmission block 413 moves downwards in the second slot body 409 along with the transmission ball 415, so that the grabbing component 404 is close to the box cover 420; then, the vacuum chuck 418 is in a vacuum state to suck the cassette cover 420.
When the box cover 420 needs to be placed on the sample box 312, the first transmission rod 411 rotates, the transmission ball 415 moves upwards along the auxiliary transmission groove 414, and the transmission block 413 moves upwards in the second groove body 409 along with the transmission ball 415; when the transmission block 413 moves to the position where the first slot body 408 is communicated with the second slot body 409, the transmission ball 415 moves to the upper end of the auxiliary transmission slot 414, the first transmission rod 411 continues to rotate, the transmission block 413 moves along the first slot body 408, and the first transmission rod 411 and the second transmission rod 412 drive the fixing plate 402 to move towards the direction close to the sample storage box 312; when the lid 420 is moved to a position right above the storage box, the vacuum cup 418 releases the lid 420, and the lid 420 is placed on the sample storage box 312.
As shown in fig. 7, the second transfer device 500 includes a transport assembly 501 mounted on the test station 100, and a gripper assembly 502 mounted on the transport assembly 501 and configured to grip the cassettes 312.
The conveying assembly 501 comprises a lead screw 503 rotatably mounted on the inspection table 100 through a rolling bearing, a third motor 504 mounted on the inspection table 100 and having an output shaft mounted on the lead screw 503, guide rails 505 mounted on the inspection table 100 and located on both sides of the lead screw 503, and a nut seat screwed with the lead screw 503 and mounted on the guide rails 505.
The clamping assembly 502 comprises a base plate 506 installed on the nut seat, a transverse plate 507 installed on the base plate 506, a first electric push rod 508 installed on the base plate 506 and having an expansion link passing through the transverse plate 507, a driving block 509 installed on the expansion link, a first clamping plate 510 and a second clamping plate 511 movably installed on the transverse plate 507 and located on two sides of the driving block 509, a pair of first clamping rods 512 having one end hinged to the driving block 509 and the other end hinged to the first clamping plate 510 and distributed along the extension and retraction direction of the first electric push rod 508, and a pair of second clamping rods 513 having one end hinged to the driving block 509 and the other end hinged to the second clamping plate 511 and distributed along the extension and retraction direction of the first electric push rod 508.
The driving block 509 is provided with a first through groove and a second through groove distributed along the length direction of the guide rail 505, the first clamping plate 510 is provided with a first insert block matched with the first through groove, the first insert block is inserted into the first through groove, the second clamping plate 511 is provided with a second insert block matched with the second through groove, and the second insert block is inserted into the second through groove.
The sample storage box 312 covered with the box cover 420 is transferred into the storage chamber 600 through the second transfer device 500 for storage, so that the food to be detected is prevented from going bad and affecting the detection result.
The sample box 312 is clamped by the clamping component 502, the third motor 504, the lead screw 503 and the guide rail 505 are utilized to drive the sample box 312 to do linear motion along the guide rail 505, so that the sample box 312 is close to the storage chamber 600, and the sample box 312 is placed in the storage chamber 600 for low-temperature storage in time;
the driving block 509 is driven to move by the extension and contraction of the first electric push rod 508, and the first clamping rod 512 and the second clamping rod 513 move along with the driving block 509, so that the sample storage box 312 is clamped by the first clamping plate 510 and the second clamping plate 511.
As shown in fig. 8 and 9, the sampling device 700 includes a transportation component 701 mounted on the inspection station 100, a steering component 702 mounted on the transportation component 701 and capable of adjusting the direction, and an extraction component 703 mounted on the steering component 702 and used for sampling.
The transportation assembly 701 comprises a second electric push rod 704 installed on the detection platform 100, slide rails A installed on the detection platform 100 and located on two sides of the second electric push rod 704, and a transportation platform 705 installed on the slide rails A and connected with the telescopic rod of the second electric push rod 704;
the steering assembly 702 comprises a fourth motor 706 mounted on the transportation table 705, a driving gear 707 mounted on an output shaft of the fourth motor 706, a steering shaft rotatably mounted on the transportation table 705 through a rolling bearing, a driven gear 708 mounted on the steering shaft and engaged with the driving gear 707, a steering plate 709 mounted on the dead shaft and located above the driven gear 708, a steering rod movably mounted in the steering plate 709, and a fifth electric push rod mounted in the steering plate 709 and having a telescopic rod mounted on the steering rod;
as shown in fig. 9, the extraction assembly 703 includes a third electric push rod 710 mounted on the steering rod and having an expansion rod passing through the steering rod, a support frame 711 mounted on the expansion rod of the third electric push rod 710, a fourth electric push rod 712 mounted in the support frame 711, a sampling tube 713 mounted at the bottom of the support frame 711 and sealed with the support frame 711, an extraction rod 714 having a lower end extending into the sampling tube 713 and an upper end passing through the support frame 711 and connected with the expansion rod of the fourth electric push rod 712 and coaxially disposed with the sampling tube 713, and an extraction plate 715 mounted at the bottom of the extraction rod 714 and sealed with the sampling tube 713.
The box cover 420 is provided with a sampling port through which the sampling cylinder 713 passes.
The automatic sampling work of the sample is completed through the sampling device 700; the transportation assembly 701 and the steering assembly 702 enable the extraction assembly 703 to be aligned with the sampling port of the sample box 312 to be sampled, so as to prepare the sampling of the extraction assembly 703; the sampling cylinder 713 is inserted into the sampling port by the third electric push rod 710, and the pumping rod 714 is driven by the fourth electric push rod 712 to move upwards, so that the air pressure in the sampling cylinder 713 is changed, and the sample in the sample storage box 312 enters the sampling cylinder 713.
The control system adopts a programmable numerical control system PLC with stable performance as a control system. The control system realizes automatic control of the first transfer device, the pickup device, the second transfer device and the sampling device, and according to actual conditions and settings: the first transfer device drives the distance that the sample storage box removed, and the second transfer device drives the distance that the sample storage box removed, and the transportation subassembly drives the distance that the extraction subassembly removed, and the steering component drives extraction subassembly pivoted angle, and the third electric putter drives the distance that the sampler barrel removed, and the fourth electric putter drives the distance isoparametric that the air extraction rod removed. The control system has the functions of indicating and correcting, memorizing breakpoints and protecting broken arcs.
The sampling method of the invention is as follows:
s1: placing the food to be detected in a crushing device, and crushing the food to be detected by the crushing device;
s2: outputting the crushed food to be detected into a sample storage box, and driving the sample storage box to move towards the direction close to the picking device by a first transfer device;
s3: the grabbing component grabs the box cover, the transmission component drives the grabbing component to move towards the direction close to the sample storage box, and the grabbing component places the box cover on the sample storage box;
s4: the clamping assembly clamps the sample storage box, the conveying assembly drives the clamping assembly to move towards the direction close to the storage chamber, and the clamping assembly places the sample storage box in the storage chamber;
s5: the transportation assembly and the steering assembly enable the extraction assembly to be symmetrical with the sampling port; the extraction component drives the sampling tube to extend into the sampling port, and the extraction component drives the air pumping rod to move upwards, so that the air pressure in the sampling tube is changed, and the sample in the sample storage box enters the sampling tube.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (10)
1. The utility model provides a food sampling structure, including examining test table (100), install on examining test table (100) and the bottom is equipped with reducing mechanism (200) of discharge gate, install on examining test table (100) and be used for carrying sample storage box (312), be located first transfer device (300) of discharge gate below, install on examining test table (100) and for sample storage box (312) pick-up device (400) of placing lid (420), install on examining test table (100) and be used for carrying second transfer device (500) of sample storage box (312), install on examining test table (100) and be located preserving room (600) of second transfer device (500) one end, install on examining test table (100) and be used for sampling device (700) to sample storage box (312) interior sample, its characterized in that:
the first transfer device (300) comprises a supporting platform (301) arranged on the detection platform (100), a supporting plate (302) movably arranged on the supporting platform (301), a groove used for placing the sample storage box (312) is formed in the supporting plate (302), and a driving assembly (303) which is arranged on the detection platform (100) and used for driving the supporting plate (302) to move;
the picking device (400) comprises a fixed table (401) arranged on the detection table (100), a fixed plate (402) movably arranged on the fixed table (401), a transmission assembly (403) arranged on the detection table (100) and used for driving the fixed plate (402) to move, and a grabbing assembly (404) movably arranged on the fixed plate (402) and used for picking up the box cover (420);
the second transfer device (500) comprises a conveying assembly (501) arranged on the detection table (100), and a clamping assembly (502) arranged on the conveying assembly (501) and used for clamping the sample storage box (312);
the sampling device (700) comprises a transport assembly (701) installed on the detection table (100), a steering assembly (702) which is installed on the transport assembly (701) and can adjust the direction, and an extraction assembly (703) which is installed on the steering assembly (702) and is used for sampling.
2. The food sampling structure of claim 1, wherein the supporting platform is provided with a sliding groove at the top, the supporting plate is provided with a sliding column at the bottom, the sliding column is matched with the sliding groove, and the sliding column is inserted into the sliding groove;
the supporting plate is provided with a driving groove.
3. The food sampling structure of claim 2, wherein the driving assembly comprises a driving shaft rotatably installed on the test table through a rolling bearing, a worm wheel movably installed on the driving shaft and located in the driving groove, the left and right end faces of the worm wheel always abutting against the supporting plate, a driving motor installed on the test table and having an output shaft installed on the driving shaft, a pair of supporting seats installed on the supporting seats, a rotating shaft rotatably installed on the supporting seats through the rolling bearing, a worm gear installed on the rotating shaft and engaged with the worm wheel and located below the worm wheel, a first driving rod having one end installed on the worm, and a second driving rod having one end hinged to the first driving rod and the other end hinged to the supporting seats.
4. A food sampling structure according to claim 3, wherein the fixing table is provided with a first fixing block and a second fixing block along the height direction, the first fixing block is provided with a first groove, and the second fixing block is provided with a second groove; the fixing table is provided with a main transmission groove of an L-shaped structure, and the main transmission groove is positioned between the first fixing block and the second fixing block;
the fixing plate is positioned between the first fixing block and the second fixing block; the fixing plate is provided with a first lug and a second lug which are matched with the first groove and the second groove, the first lug is inserted into the first groove, and the second lug is inserted into the second groove.
5. The food sampling structure of claim 4, wherein the driving assembly comprises a fixed seat installed on the inspection table, a moving shaft installed on the fixed seat by a rolling bearing, a second motor having a claw on the fixed seat and an output shaft installed on the moving shaft, a first driving rod having one end installed on the moving shaft, and a second driving rod having one end hinged to the first driving rod and the other end hinged to the fixed plate;
a transmission block which is in a cubic structure and can move along the main transmission groove is arranged in the main transmission groove;
an inclined auxiliary transmission groove is formed in the fixed plate, and a transmission ball which is of a spherical structure and can move along the auxiliary transmission groove is arranged in the auxiliary transmission groove; the transmission ball is embedded into the transmission block and is rotationally connected with the transmission block, and the transmission ball is embedded into the grabbing component and is rotationally connected with the grabbing component.
6. The food sampling structure of claim 5, wherein the grasping assembly comprises a support bar, a pick-up bar vertically installed on the support bar, a vacuum chuck installed at the bottom of the pick-up bar, a vacuum pump installed on the support bar and communicating with the vacuum chuck through a first pipe;
the supporting rod is provided with a caulking groove for embedding the transmission ball.
7. The food sampling structure of claim 6, wherein the conveying assembly comprises a lead screw rotatably mounted on the inspection table through a rolling bearing, a third motor mounted on the inspection table and having an output shaft mounted on the lead screw, guide rails mounted on the inspection table and located at both sides of the lead screw, and a nut seat threadedly coupled to the lead screw and mounted on the guide rails.
8. The food sampling structure of claim 7, wherein the clamping assembly comprises a bottom plate installed on the nut seat, a cross plate installed on the bottom plate, a first electric push rod installed on the bottom plate and having the telescopic rod pass through the cross plate, a driving block installed on the telescopic rod, a first clamping plate and a second clamping plate movably installed on the cross plate and located at both sides of the driving block, a pair of first clamping rods having one end hinged to the driving block and the other end hinged to the first clamping plate and distributed along the extension direction of the first electric push rod, and a pair of second clamping rods having one end hinged to the driving block and the other end hinged to the second clamping plate and distributed along the extension direction of the first electric push rod.
9. The food sampling structure of claim 8, wherein the transportation assembly comprises a second electric push rod installed on the inspection table, a slide rail installed on the inspection table and located at both sides of the second electric push rod, and a transportation table installed on the slide rail and connected to the telescopic rod of the second electric push rod;
the steering assembly comprises a fourth motor arranged on the transport table, a driving gear arranged on an output shaft of the fourth motor, a steering shaft arranged on the transport table in a rotating mode through a rolling bearing, a driven gear arranged on the steering shaft and meshed with the driving gear, a steering plate arranged on the dead shaft and located above the driven gear, a steering rod movably arranged in the steering plate, and a fifth electric push rod arranged in the steering plate and provided with a telescopic rod arranged on the steering rod;
the extraction subassembly is including installing the third electric putter that just the telescopic link passed the steering panel on the steering panel, installs the support frame on third electric putter telescopic link, installs the fourth electric putter in the support frame, installs in the support frame bottom and with the sealed sample tube of support frame, the lower extreme stretches into in the sample tube and the upper end pass the support frame be connected with fourth electric putter telescopic link, with the coaxial exhaust rod that sets up of sample tube, install in the exhaust rod bottom and with the sealed exhaust plate of sample tube.
10. A method for detecting a food sampling structure according to claim 9, wherein the sampling step is as follows:
s1: placing food to be detected in a crushing device (200), and crushing the food to be detected by the crushing device (200);
s2: outputting the crushed food to be detected into a sample box (312), and driving the sample box (312) to move towards the direction close to the picking device (400) by the first transfer device (300);
s3: the grabbing component (404) grabs the box cover (420), the transmission component (403) drives the grabbing component (404) to move towards the direction close to the sample storage box (312), and the grabbing component places the box cover (420) on the sample storage box (312);
s4: the sample storage box (312) is clamped by the clamping component (502), the conveying component (501) drives the clamping component (502) to move towards the direction close to the storage chamber (600), and the sample storage box (312) is placed in the storage chamber (600) by the clamping component (502);
s5: the transportation assembly (701) and the steering assembly (702) enable the extraction assembly (703) to be aligned with the sampling port; the extraction assembly (703) drives the sampling cylinder (713) to extend into the sampling port, the extraction assembly (703) drives the extraction rod (714) to move upwards, so that the air pressure in the sampling cylinder (713) is changed, and the food to be detected in the sample storage box (312) enters the sampling cylinder (713).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010582818 | 2020-06-24 | ||
| CN2020105828184 | 2020-06-24 |
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